Screen.



PATENTED JAN; 8

W S G. TODD.

SCREEN.

APPLICATION FILED MAY 29, 1906.

Zinuantop 2/ t masses noi eeders i i I f Specification of Letters Patent. I

. Feminine; ejieo'i.

Application filed May 29,1906. Serial lie. 315,388

To (1/7 na 1on1 ir'pz/uj concern;

' Be it lnrown that I, W. S. Gnomes Torin. a citizen of the [hired States of America, re-

siding ,at Boulder (frock, in the county of Santa Cruz and State of California, have in vented new and useful improvements in Screens, of which the following is s specification..

This invention relates to a screen for use in ljlumes, ditches. and other watercourses leadin; to mills or other Watendriven powerplants for the purpose of preventing fish lrom passing to the powerevheel and being ijured or destroyed and for intercepting and discharging from the llunie or; Watercourse all driftwood and other debris; the object of the invention being to provides, simple construction of apparatus which will operate effectually for these purpose 4 In theaccompanying drawings, Figure 1 is a side elevation oi" a ilunie embodying my invention. Fig. is atop plan view of the same. through the llume and screen mechanism.

ltet'errin; to the drawings, the numeral 1 designates allunie or other Watercourse Within which is arranged an unders'hot Wateru'heel 2, the shaft 3 of which is ournsled in suitable hearings 4 upon the side walls ot the llume.

Arranged in advance of said watenwheol in the course of flow of the Fitter is an endless belt 5, composed of Wire mesh or other suitable screen material 'l. his belt corresponds substantially in Width. with the u idth of the tluine and is arranged. at an upward and forward incline and passes around ullevs on transverse shafts 6 and 7 The s raft 6 is disposed near the bottom of the ilume just in advance or the Water-Wheel andis journaled in the side Walls of the fiume, While the shaft 7 is arranged a suitable distance in advance of the wheel and is journeled in bearing-s S, secured to the upper edges of the side Walls of the l'lume. The function of this screen 5 is to form a barrier to prevent fish and drift matter from passing to thepowen wheel of the mill and to elevate the dritt mat:

ter to the top of the lluine.

A transverse discharge-screen 9 is arranged at the top or the flunie adjacent the upper end of the screen 5 andconsists of an endless Wire .or reticulated belt passing around pulleys on shafts 10 and 11, journaled in bear- Fig. 3 is a. longitudinal section The drift matter arrested in its passage through the fluine by the screen-belt '5' is designed to be elevated by said belt and deposited upon the belt 9 and to be conveved by the latter to one side of the flume rind-discherged. if desired, the drift matter discharged by the belt 9 may pass into a suitable receptacle or to an auxiliary canal leading back to the creek or source of Water-supply for the iluine. In practice the belts are not designed to elevste and conve from the flume any fish that may come in contact with the screen 5; but if small fish should be caught and elevated by said belt the provision of the auxiliary canal referred to, into which they will be discharged will enable themto puss back to the creek or source of supply Without injury. thus meet all the requirements of the law of those States having lam vs pertaining to fish protection or preservation, under which the operators of rnills of this character are coinpelled to use screens of some type to prevent fish from passing tl'iroug'h the tlume to the powerovheel.

. i i a l a The elicit ol the Wsterflvneel carries a beveled gee-r meshing with a corresponding gear 13 on a longitudinal shaft 14, journeled in bearings 15 on one side oi the tlunie, which shalt 1s: carries a second beveled gesr 16 and e; spur-gear i7, meshing, respectively, With-corresponding gesrs 18 and 1.9 on the upper shsft 7 of the screen 5 end the adjacent shaft ll. of the screen. 9. will thus be seen that in operation. the wheel 2 Wii be turned by the flowing current of Witter end Will transfer motion to the screens 5 and 9 to discharge the driftwood or other material coming in contact with said screen Having thus described the invention, What is claimed as new is I 1. In a device of the character described, the combination. of a fiunie, a Water -wheel airrnngcd therein, a, barrier-screen disposed in the fluine and leading upward therefrom, a discharge-screen extending across the flunie adjacent the delivery end of said barrierscreen, and means for operating said screens from the wnterqvheel.

""2. In a device of the character described the combination of s flume, s Water-Wheel arranged therein, a screen-belt leading on an upward inclination from the Water-Wheel to the top of the flume, e transversely-extendings on the opposite Walls of the tlume. 1 ing discharge-screen arranged adjacent the The apparatus Will upper end of the barrier-screen, and gearing driven by the water-wheel for imparting mofrom the bottom of the flume to the discharge 1 o screen and between said screen and the water-wheel, shafts supporting said wheel and screens, and gearing connecting said shafts. whereby the action of the water -wheel will drive said screens.

. In testimony whereof I affix my signature I 5 in presence of two witnesses.-

I W. S. GEORGE. TODD. Witnesses:

. T. CLELANI),

W. H. DooL. 

